CAREER: A Novel Approach for Large Eddy Simulation on Unstructured Grids Applied to Turbulent Jets in Cross-Flow

职业生涯：一种应用于横流湍流射流的非结构化网格大涡模拟新方法

• 批准号: 0133837
• 负责人: Krishnan Mahesh
• 金额: $ 37.5万
• 依托单位: University of Minnesota-Twin Cities
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-01-15 至 2007-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0133837&HistoricalAwards=false
• 关键词: CAREER; Novel; Approach; Large; Eddy

Abstract CTS-0133837K. Mahesh, University of MinnesotaIt is proposed to perform large eddy simulation (LES) of turbulent jets in cross-flow using unstructured grids. The problem is chosen because its applicability to a number of important technical problems such as fuel injectors, V/STOL aircraft, film cooling of turbine blades and etc. Furthermore such a flow cannot be correctly predicted by the current computational scheme of Reynolds-averaged Navier-Stokes equations (RANS). Unstructured grids are chosen to allow mesh points to be localized near the jet boundary and near the wall. The method of computation will be based on a kinetic energy conserving scheme, which was developed by the PI. The results will be compared to existing experimental data. The LES scheme, once fully developed, will be applied to a range of other flows. The education plan involves development of new graduate courses, incorporate research component into both graduate and undergraduate courses, and including undergraduate students in research projects.

抽象的cts - 0133837 k。明尼苏达大学的Mahesh，提出了使用非结构网格对横流湍流射流进行大涡模拟（LES）的方法。选择该问题是因为该问题适用于喷油器、垂直/短距起降飞机、涡轮叶片气膜冷却等许多重要的技术问题。此外，目前的reynolds -average Navier-Stokes方程（RANS）的计算格式不能正确地预测这种流动。选择非结构化网格以允许网格点定位在射流边界附近和壁面附近。计算方法将基于PI开发的动能守恒方案。结果将与现有的实验数据进行比较。LES计划一旦得到充分发展，将适用于一系列其他流动。教育计划包括开发新的研究生课程，将研究内容纳入研究生和本科课程，并将本科生纳入研究项目。